Slug-casting machine



March 15 1927.

J. G. M NAMARA SLUG CASTING MACHINE Filed March 21, 1924 4 5Sheets-Sheet 1 SINVENTOR March 15, 1927. 1 1,620,978

, J. G. M NAMARA SLUG CASTING MACHINE Filed March 1, 1924 aSheets-SheetZ 1 Van/L v March 15,1927. 1 1,620,978

- J. G. M NAMARA iii! Patented Mar, 15, 1927.

NI ED T 1 mama JAMES G. McNAMARA,oF BROOKLYN, NEW YORK; nss'IoNOBTQMERGE T L N XrE c lemma c mB lon F-NEW',YORK.-,

sLUG-oAs In'G Mncnmn,

Application filed March 21, 1924. Serial No. 700,:207. I

This invention has referenceto slug castingimachines, such aslinotype-machines of the general organization represented in Letters'Patentof the United; States No. 436,532

to Mergenthaler, wherein a slug .or lino-V type is cast in a slottedmold against a composed line of matrices which produce the typecharacters thereon.- In these machines,

the molds are usually-mounted in a vertical;

'intermittingly rotated :diskor' wheel which first presents the selectedmold inahorizontal position for the casting of the slug, and thereaftercarries it around to'ajvertical position for the ejection of the :castslug therefrom. f a i I The lpresentzinventionis directed to an improvedmounting-of the mold disk-,and one which will :admit of "its instantandconvenien-t removal foncleaning, repair or replacementyor for anyotherpurpose. The

invention-also contemplates the combination with the mold disk of acooling jacket mounted in novel --relation thereto and serv-' ing toprevent the undue heating of-theparts by'the molten metal from which theslugs are produced. "r The exact nature of the*improvementswill-hest beunderstood'fro'm the detaileddescription to follow; I Referring to t-hedrawings v 1 aside elevation ofa portion of a li-notype machine equippedwith the pres ent=improvements;- i 7 F g-2 2 front elevation of thesame; Fig. 3 isahorizontal section, partly in 'plan bfthe -mold slide,the mold disk, and the associated parts;

g =4 is a -vertical sectiontakenon the UGH .ofFig; 3 as viewed in thedirection of-the= -arroWs-; Y a r Fig; 5" is a perspective "-view) ofthe 'mold slide-as viewed from the; rear, andshowing the 'releasablemold, disk confining means p 5 the inner end of a locking plate-orslideGAs usual, the mold-diskA, equipped with one or more molds 1A, is mountedfor rotation upon the arm or support B pro ecting laterally from themoldslide B which latter 7 ing near its upper end the usugaldisk guidingthroughfthe customary connections "by the gear segmentsAfl in such"manner. that durL- ably therefrom. The, journal stud F jects'a slightdistance loeyond' the rear face 'of the-armeB and is formed in itsproingwcasting the selected mold is presented 1 in a horlzontal position,to receivethe molten mg is carried around to a vertical position vwhereit registers with a pair, of trimming' knives (not shown) between whichthe slug is e ected from the mold by the usual ejector,

h ATENT- OFFICE;

metal from the metal pot C, and after casta blade; 0 As is well known,the reciprocation of the mold slide '3 is timedto, move the diskrearwardly when it is to be; rotated to carry the selected mold fromcasting to ejecting position, or vice versa, and to move the diskforwardly when in either of. such positions, in the one case to insurethe close: contact, of the mold with the composed matrix line held inthevise frame D, and in the other to locate the-,moldinproximity,

slug While in the mold is trimmed; icy-ma" back knife B on the freeendof the arm" 13 :as shown in Fig.5 andpast whichthe,

-- commercial linotype machine or of other appropriate construction. i J

to the trimmingknivesrsThebase of the.

As before stated, the'present. invention isf' directed to an improvedmounting of the mold disk. 2 In the embodiment illustrated,

thearm'B is provided with aboss E pro.- I 'jecting v forwardly therefromand formed with a centralbearing opening E passing v through the bossand'arm from front to rear,

Themold disk A has fixed to it a rearwardly extending journal stud Frotatab-lyzmount-ed' in the bearingopening.Ezandf e l rmow jecting endwith an annular g-roove F; In this groove F, therens adapted to engage:

movable horizontally in guides G on the rear face of the arm B' Thelocking plate may be? operated'by any suitable means, but

in the present instance it is'connected by a link G with a hand lever Hivoted-atfitslower end to the arm '13, as at} and carryally confinedthereon; whereas, when the locking plate is disengaged from the studgroove,'the mold disk may be drawn forwardly for removal from thesupporting arm,it being apparent that the looking or unlocking of themold disk 'may be instantly effected simply by swinging the hand leverin one direction or the other. By placing the guiding block H on thehand lever, the

disengagement of the locking plate from the mold disk willsimultaneously effect the disengagement of the guiding block therefrom.In removing the mold disk, the vise frame D as ordinarily is swungforwardly and downwardly out of theway, as indicated by the'dotted linesin Fig. 1.

In order that the'parts will be prevented from becoming unduly heated bythe molten metal injected into the molds during the slug castingoperations, a hollow annular cooling jacket J is placed around the bossE and in the space between the arm B and the mold disk A. This coolingjacket is confined in place'and against rotation by means of a number offastening screws J passing through lugs J on the jacket and screwed intothe supporting arm. The heads of the screws J arecountersunk in the lugsJ and are so spaced from the front face of the supporting arm as topermitof a limited axial movement of the cooling jacket. Expansionsprings K, seated between the supporting arm and cooling jacket, act topress the latter up against the rear face of the mold disk and hold itin yielding contact therewith. A cooling medium, such as water, entersthe jacketby a pipe L connected thereto atone side of a partition L, andafter flowing around the chamber L leaves the jacket by a pipe Lconnected thereto at the opposite side of the partition.

In the accompanying drawings, the invention has been'illustra'ted merelyin preferred form and by way of example and as applied to a linotypemachine, but obviously many changes and variations thereinand in itsmode of application may be made without departing from its spirit. It

- is to be understood therefore that the invention'is notlimited to anyspecific form or embodiment, except in so far as such limita tions arespecified in the claims. 7

Having thus described my invention, what I claim is:

1. In a linotype machine the combination of a mold slide movableforwardly and backwardly in the machine, a mold disk equipped with oneor more slug casting molds-and rotatably mounted upon the slide, saidmold disk being freely removable from the slide, a locking devicecarried by the mold slide and cooperating with the mold disk toconfinethe latter rotatably placed thereon, said locking device beingmovable at will to disengage the disk for instant disk, a journalnections between said operating member and locking device. I v

2. In a linotype machinelthe combination of a mold slide movableforwardly and backwardly in the machine, a mold disk equipped with oneor more slug casting molds and rotatably mounted upon the slide, saidmold disk being freely removable from the mold'slide'in a forwarddirection, a locking device carried by the mold slide and cooperatingwith the mold disk to confine the latter rotatably in place there-.

on, and means connected to said lockingdevlce and being operable at willfrom the front of the machine to disengage the mold disk and permit itsinstant removah .3. In a linotype machine the combination of a moldslide movable forwardly and backwardly in the machine, a mold diskequipped with one or more slugcasting molds and rotatably mounted uponthe slide, said mold disk being freely removable from the mold slide, alocking device Jcarried by the mold slide and cooperating with the molddisk to confine the latter rotatably placed thereon, and a-hand leveralsocarried1by the mold slide within easy reach of.

the operator and operatively connected with the locking device, wherebytheplatter may the instant v be disengaged at will to-permit removalof'the disk.

4. In a linotype machine, the'conibinatioii of a support provided with abearing, fa mold disk, a. journal stud fixed to the disk andi removablymounted in the" bearing and formed with an annular groove, a lockingdevice slidably mounted on the support and adapted to engage in the,stud groove tolcon-y fine the mold disk on the support,and a leverpivoted to the support and connected with the locking device] fordisengaging it from the stud to permit the removal of themold disk.

5. In a linotype machine, the combination of a'support provided with abearing, a mold and removably mounted in the bearing a locking deviceslidably mounted on the-,supjstud fixed to the mold disk.

port and adapted to engage the stud to confine the mold disk onthesupport, a hand lever pivoted to the support and connected to thelocking device for disengaging it from the diskstud, and a disk guidingblock carried by the hand lever and adapted to be dis; engaged from thedisk by the disengage? ment of the locking device.

6. In alinotoype machine, the combination of a moldslide provided withalaterally extending support formed with a bearing opening passingthrough it from fronta to rear, a mold disk located atthe front of thesupport, a ournal stud on the mold disk re:

movably mounted in the bearing opening and projecting beyond the rearface of the support, the projecting end of the stud being formed with anannular groove, a locking device movably mounted on the rear face of thesupport and engaging in the stud groove to confine the mold diskthereon, and means for disengaging said locking device from the studgroove to permit the removal of the mold disk. 5

7. In a linotype machine, the combination of a support, a mold diskrotatably mounted thereon, means releasable at'will for confining thedisk'on the support,al disk guiding member carried by the support'andmovable to free the disk, and operative connections between saidconfining means and guiding member whereby the movement of the lattereffects the release of the former.

8. In a linotype machine, the combination of a support, a mold diskrotatably mounted thereon, and a relatively stationary, cooling jacketarranged in contact with the side face of the disk.

9. In a linotype machine, the combina -j tion of a support, a mold diskrotatably mounted theron, a floating cooling jacket carried by thesupport, and means acting to press the j face'of the disk;

10. In a-linotype machine, the combination of a support provided with ahollow boss, a mold'disk rotatably journaled in the boss, and an annularcooling j acket surrounding the boss and contacting with the rear faceof the disk. I

eket yieldingly against the rear- 11. In a linotype machine, thecombination of a support provided with a hollow boss, a mold diskrotatably journaled in the 4 I the cooling jacket to hold it-yieldinglyagainst the rear face of the disk.

f In testimony whereof, I have aflixed my signature hereto.

JAMES G. MONAMARA,

